I love everything about my titan but the gas tank. I have an 08 with a 37gal tank. Normal atlanta commute(2hrs to go 40miles) I average around 15mpg. I can drive 630 miles on 37gal so I average 17mpg on non-stop long trips. I even figured up the burn rate of the truck to be around 4.6gal an hour. This is what I would expect from a truck of this caliber. It is much better than my dads old chevy.